Interval Training

Interval Training is a clean, distraction-free interval timer built for any workout — Tabata, HIIT, boxing rounds, treadmill sprints, or a simple stretch routine.

Build your own workouts
Create fully custom workouts with as many rounds as you need. Set individual work and rest times for each round, name each exercise, and reorder or delete rounds at any time. Your
workouts are saved locally and ready whenever you are.

Ready-to-use templates
Get started instantly with built-in workout templates:
- 4-Minute & 8-Minute Tabata
- Treadmill HIIT (Beginner & Advanced)
- Outdoor Run Intervals
- Stair Climber Intervals
- EMOM Full Body
- Upper Body Blast & Lower Body Burn
- Fight Camp (Boxing Style) — 15 rounds, 3 min work / 1 min rest
- Pyramid Intervals & Descending Ladder
- Mobility Flow & Stretch & Relax

Designed to keep you focused
- Circular progress ring shows exactly where you are in each phase
- Phase colors change instantly: Get Ready → Work → Rest → Done
- Current exercise name shown prominently during work phase
- "Next up" preview so you're never caught off guard
- Screen stays on during your workout automatically

Audio & haptic feedback
- Distinct tones for each phase transition
- Optional countdown beeps before each phase ends
- Vibration patterns for every phase change
- Sound and vibration can be toggled independently in Settings

Clean and simple
No account required. No ads. No internet connection needed. Everything runs locally on your device.